Fuel heating or vaporizing attachment



at, 8, 19350 v. ARATO FUEL HEATING OR VAPORI ZING ATTACHMENT Filed NOV. 24, 1934 Patented Oct. 8, 1935 UNITED STATES PATENT OFFICE FUEL HEATING OR VAPORIZING ATTACHMENT 3 Claims.

This invention relates to a fuel heating or vaporizing attachment designed primarily for use in connection with carburetors employed in automotive vehicles operated from internal combustion engines, but it is to be understood that an attachment, in accordance with this invention may be employed in any connection for which it is found applicable, and the invention has for its object to provide, in a manner as hereinafter set forth, an attachment of the class referred to for instantaneously heating or vaporizing the liquid fuel in the Well of a carburetor so as to bring about immediate combustion of a combustive charge supplied to the cylinder or cylinders of the engine whereby, especially in cold Weather, to obviate the usual delay in obtaining the explosion of the charge when it is desired to start the vehicle, as well as doing away with the waste of storage battery current attendant upon the usual prolonged use of the battery in starting the vehicle in cold weather.

Further objects of the invention are to provide, in a manner as hereinafter set forth, an attachment for the purpose referred to which is simple in its construction and arrangement, strong, durable, compact, capable of being readily installed for use in connection with the wall of any type of carburetor, thoroughly eiiicient when used, and inexpensive to manufacture.

To the above ends essentially, and to others which may hereinafter appear, the invention consists of such part, and such combination of parts which fall within the scope of the invention as claimed.

In the drawing:

Figure l is an elevation, partly in section of a carburetor showing the adaptation with the well .of the latter, the fuel heating or vaporizing attachment in accordance with this invention,

Figure 2 is a longitudinal sectional view of the attachment showing the adaptation thereof with respect to the carburetor well,

Figures 3 and 4 are sectional views on lines 3-3, 4-4 respectively, Figure 2.

Referring to the drawing, 5 indicates a carburetor and 6 the well of the latter containing a body of liquid fuel I. The wall of well 6 is formed with an opening 8 for the passage of the attachment 9 into the body of liquid fuel in well 6.

The attachment 9 is anchored to carburetor 5 and it includes a sleeve I I] of conducting material of the desired length and diameter. The sleeve ID at one end is formed with an outwardly directed annular flange l I of a thickness greater than that of the sleeve body. The sleeve III has its outer periphery threaded from the inner side of flange II to the other end thereof. The peripheral threads on sleeve III are designated l2. The sleeve It is passed through opening 8 and certain of its peripheral threads contact with the 5 wall of the opening 8. That side of flange II opposing the inner face of the wall of well 6 is formed with a laterally disposed hexagonal extension I2. Carried by sleeve I0 is a non-conducting washer I3 of greater diameter than that 10 and abutting that side of flange I I provided with extension [2. Mounted on sleeve It is a nonconducting washer I l and a clamping nut I5 which engages with threads I2. When the sleeve I9 is anchored to the wall of the well 6, the 15 washer I3 is interposed in abutting relation between the extension l2' and inner face of said wall; the washer I i abuts the outer face of the wall of the well 6; and the nut I5 binds against washer I 4 whereby the flange II, wall of well 6 0 and Washers I3, l4 are clamped together and sleeve Ill is anchored to the carburetor.

Extending into the inner and outer ends of sleeve It), as well as abutting against and extending from the end edges of the sleeve is a pair of 5 oppositely disposed insulating flanged inner and outer bushings I6, I! respectively. The bushing I9 abuts flange II.

The attachment includes a conducting element l8 consisting of a peripherally threaded shank or 30 stem I9 and a head 20. The shank l 9 is arranged axially of and is of greater length than the sleeve. The outer portion H of shank I9 projects from the outer end of the sleeve. The projecting portion 2| of shank I9, in connection with the nuts 35 22, 23 threadedly engaging therewith, constitutes a binding post for the terminal of a circuit conductor 24 of a heating circuit. The shank I9 extends through and is supported axially of and in spaced relation to sleeve I9 by the bushing I 6, I1. 40 The head 29 of element I8 abuts the outer end edge of bushing IS. The nut 22 abuts the outer end edge of bushing I'I.

Extending from the head 20 of element I8 is a coiled electric heater element 25 having an extension 26 at its outer end which is arranged parallel to the body of element 25 and is in electrical contact with the edge of flange II of sleeve It]. The element 25 is anchored at one end to and surrounds head 20. 50

The attachment includes a casing 21 closed at its inner end and open at its outer end. The flange II extends into the casing 21 at the outer end of the latter and is anchored to the casing. The edge of casing 21, at its open end, abuts the 55 extension 12'. The casing 21 is provided with a lining 28 of mica which extends on flange I l and abuts the extension I2. The extension 26 of the heater element 25 is interposed in spaced relation between the body of heater element 25 and the mica lining 28.

The circuit conductor 24 leads from one of the poles of a switch 29. Extending from the battery 30 on the vehicle is a circuit conductor 3| which leads to the other pole of switch 29. The conductors 24, 3|, switch 29, extension 26, sleeve 10, element I8 and wall of well 6 provide the heating circuit for heater element 25. The bushing 16, ll insulate element ill from sleeve Hi.

When switch 29 is closed the heater element 25 becomes active and heats or vaporizes the fuel in well 6, the switch is then opened and the vehicle may be started immediately by the use of the self starter.

What I claim is:

1. In a heating or vaporizing attachment for the purpose set forth, a peripherally threaded sleeve of conducting material provided at one end with an outwardly directed flange, a pair of oppositely disposed flanged non-conducting bushings mounted in and abutting the ends of said sleeve, a conducting element mounted in said bushings, abutting the outer edge of one and extending from the outer edge of the other of said bushings, an electric heater element electrically connected to that portion of said conducting element which abuts one of said bushings, said heater element being provided with an extension in electrical contact with said flange, a closed casing element for encompassing said heater element, said casing encompassing, anchored to and extended from said flange, a pair of non-conducting washers on said sleeve for abutting opposite faces of said structure, and a clamping nut threadedly engaging with said sleeve and coacting with said washers for anchoring the sleeve to-said structure.

2. In a heating or vaporizing attachment for the purpose set forth, comprising a peripherally threaded sleeve of conducting material, said sleeve being formed at its inner end with an outwardly directed annular flange, a conducting element including a shank and a head, inner and outer annular insulating elements within and extended from the outer and inner ends of the sleeve, said shank extending through said insulating elements and supported by the latter axially of and in spaced relation to said sleeve, said head abutting the inner one of said insulating elements, said shank extending outwardly from the outer one of said insulating elements for connection to a source of electrical supply, an electrical heater element attached to and extending from said head and being formed with an extension electrically connected to said flange, a closed casing element anchored to said flange and encompassing in spaced relation said heater element, and means upon said sleeve for anchoring it to said structure, said means including a pair of non-conducting washers.

3. In a heating or vaporizing attachment for 20 the purpose set forth, comprising a peripherally threaded sleeve of conducting material, said sleeve being formed at its inner end with an outwardly directed annular flange, a conducting element including a shank and a head, inner and outer annular insulating elements within and extended from the outer and inner ends of the sleeve, said shank extending through said insulating elements and supported by the latter axially of and in spaced relation to said sleeve, said head abutting the inner one of said insulating elements, said shank extending outwardly from the outer one of said insulating elements for connection to a source of electrical supply, an electrical heater element attached to and extending from said head and being formed with an extension electrically connected to said flange, a closed casing element anchored to said flange and encompassing in spaced. relation said heater element, and means upon said sleeve for anchoring it to said structure, 40

said means including a pair of non-conducting washers, the said insulating elements abutting the end edges of said sleeve.

VINCENZO ARATO. 

